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公开(公告)号：EP3596576B1
公开(公告)日：2024-10-30
申请号：EP18713587.6
申请日：2018-03-16
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公开(公告)号：EP3499288B1
公开(公告)日：2024-10-09
申请号：EP16913886.4
申请日：2016-08-26
CPC分类号： G02B26/06 , G02B6/356 , G02B6/3588 , G02B6/3558 , G02B6/29311
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公开(公告)号：EP4414772A3
公开(公告)日：2024-10-02
申请号：EP24182500.9
申请日：2020-08-14
申请人： MAGIC LEAP, INC.
CPC分类号： G02B27/0018 , G02B27/0172 , G02B2027/01220130101 , G02B27/281 , G02F2203/4820130101 , G02F2201/5820130101 , G02F2203/1220130101 , G02F1/1362 , G02C7/086 , G02C11/10
摘要： A head-mounted apparatus include an eyepiece that include a variable dimming assembly and a frame mounting the eyepiece so that a user side of the eyepiece faces a towards a user and a world side of the eyepiece opposite the first side faces away from the user. The dynamic dimming assembly selectively modulates an intensity of light transmitted parallel to an optical axis from the world side to the user side during operation. The dynamic dimming assembly includes a variable birefringence cell having multiple pixels each having an independently variable birefringence, a first linear polarizer arranged on the user side of the variable birefringence cell, the first linear polarizer being configured to transmit light propagating parallel to the optical axis linearly polarized along a pass axis of the first linear polarizer orthogonal to the optical axis, a quarter wave plate arranged between the variable birefringence cell and the first linear polarizer, a fast axis of the quarter wave plate being arranged relative to the pass axis of the first linear polarizer to transform linearly polarized light transmitted by the first linear polarizer into circularly polarized light, and a second linear polarizer on the world side of the variable birefringence cell.
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公开(公告)号：EP4154046B1
公开(公告)日：2024-04-03
申请号：EP22705444.2
申请日：2022-02-01
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公开(公告)号：EP4275833A1
公开(公告)日：2023-11-15
申请号：EP23169295.5
申请日：2023-04-21
申请人： Carl Zeiss SMT GmbH
IPC分类号： B23K26/53 , B23K26/067 , G02B26/06 , B23K26/064 , G02B27/00 , G02B27/10
摘要： The invention relates to a device for focusing a photon beam into a material. The device comprises: means for splitting the photon beam into a plurality of component beams; means for focusing the component beams at a predetermined focal depth within the material; means for adapting the wavefronts of the component beams based at least in part on the focal depth.
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公开(公告)号：EP4261574A1
公开(公告)日：2023-10-18
申请号：EP23163858.6
申请日：2023-03-23
发明人： CHEN, Dong , LEE, Yun-Han , LEE, Kilbock , ZHUANG, Zhiming , NAM, Donghee , SONG, Hyunmin
摘要： A micro-light emitting diode device includes a backplane including drive circuits formed thereon, an array of micro-LEDs bonded to the backplane and electrically coupled to the drive circuits, an array of polarization diffraction micro-lenses bonded to the array of micro-LEDs and including a planar surface, and a cover glass bonded to the planar surface of the array of polarization diffraction micro-lenses. A center of each polarization diffraction micro-lens of the array of polarization diffraction micro-lenses aligns with a center of a respective micro-LED of the array of micro-LEDs.
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公开(公告)号：EP4105708B1
公开(公告)日：2023-10-18
申请号：EP22175621.6
申请日：2022-05-26
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公开(公告)号：EP4177565A1
公开(公告)日：2023-05-10
申请号：EP22206818.1
申请日：2019-10-24
发明人： Rumala, Yisa S.
摘要： A method for measuring pitch, yaw and roll angles of an element, said method comprising: providing a frequency tunable laser beam; directing the laser beam into a spiral phase plate resonator, SPPR, device, said SPPR device including opposing reflective surfaces that reflect the laser beam back and forth in the device, wherein one of the reflective surfaces includes a spiral step index that causes multiple reflected amplitudes having different phases to be combined and generate an optical vortex intensity pattern defined by the phases of the multiple amplitudes, where the intensity pattern includes a singularity centroid and four radial light peaks; reflecting the laser beam off of the element after it has propagated through the SPPR device so that the laser beam is directed onto a camera that generates images of the optical vortex intensity pattern; determining a location of the centroid in the images generated by the camera; determining integrated counts along a radial direction from the centroid in the images generated by the camera as a function of beam roll angle; determining a location of the radial light peaks in the images generated by the camera using the integrated counts; changing the frequency of the laser beam to rotate the radial light peaks in the optical vortex intensity pattern in the images generated by the camera; estimating the roll angle of the element from the change in frequency that rotated the optical vortex intensity pattern; determining the pitch angle of the element by a shift of the vortex intensity pattern in one plane in the images generated by the camera; and determining the yaw angle of the element by a shift of the vortex intensity pattern in a plane orthogonal to the one plane in the images generated by the camera.
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公开(公告)号：EP3644107B1
公开(公告)日：2023-05-03
申请号：EP18838652.8
申请日：2018-04-25
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